Austrian ’ s jewels could fetch more than $150m

The 700-piece private jewellery collection of the late Austrian billionaire Heidi Horten, the world ’ s largest and most valuable collection of its type to come to auction, could sell for more than $150m, Christie’s said on Monday.

Some of its most spectacular pieces include the 90-carat “Briolette of India” diamond necklace by HarryWinston, and the “Sunrise Ruby” and diamond ring by Cartier that is worth up to an estimated $20m.

The collection, acquired from the early 1970s until Horten’s death in 2022, also comprises more than 100 Bulgari pieces.

Horten ’ s collection is set to exceed the record sales at Christie’s for Elizabeth Taylor’s collection in 2011 and the Maharajas & Mughal Magnificence auction in 2019, the only two jewellery collections to have garnered more than $100m.

Christie’s said proceeds of the auctions would go towards the Heidi Horten Foundation, which supports charitable causes including in the fields of healthcare and child protection.

Before agreeing to auction the collection, Christie’s said it had considered the business practices of Horten’s late first husband, German department store tycoon Helmut Horten, who during the Nazi era “purchased Jewish businesses that were sold under duress”.

“What ’ s important is that we have been completely transparent,” said Rahul Kadakia, international head of jewellery at Christie’s. “We are selling this collection in its identity with the name Horten. It’s not being sold as an anonymous collection.”

Christie’s said it would make a “significant contribution” from its final proceeds to Jewish organisations to advance Holocaust research and education.

“Of course we cannot erase history,” said Max Fawcett, head of the jewellery department at Christie’s in Geneva. “But we hope the funds from this sale will go to do good in the future.”

Christie’s will auction 400 pieces in Geneva onWednesday and Friday and hold an online sale. It will hold a second online sale in November. /